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MW 10x1.5 / N40 - cylindrical magnet

cylindrical magnet

Catalog no 010595

GTIN/EAN: 5906301815891

Load capacity 0.82 kg / 8.04 N Magnetic Induction 183.09 mT / 1831 Gs
Diameter Ø
10 mm [±0,1 mm]
Height
1.5 mm [±0,1 mm]
Weight
0.88 g
Magnetization Direction
↑ axial
Coating
[NiCuNi] Nickel

How we measure these parameters — certificates and measurements

technical specifications »

0.440 zł net / pcs

0.541 zł with VAT (23% VAT) / pcs

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Frequently asked questions

Where can I buy strong cylindrical neodymium magnets?
See the available cylinders in the DHIT catalogue. Compare dimensions, grade and the pull-force value on each product card; grade alone does not determine the pull force of a finished magnet.
Can a small cylindrical magnet provide a strong grip for precise workshop work?
Yes, but size alone is not enough to predict the result. Geometry, the steel surface and the direction of load affect the grip. Compare the specifications of the selected dimensions on their product cards.
Which cylindrical magnet can work at a higher temperature?
Check the operating-temperature limit of the particular model rather than assuming one limit for all N grades. The offered N52 models are rated up to 60°C. For hotter applications, ask for a product with a confirmed specification for the actual working temperature.

Guides from the knowledge base

Engineering report for this magnet

Full PDF analysis: pull and shear force, effect of distance, temperature and plate thickness, safety distances and the demagnetization curve.

PDF report Calculator
Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Physical properties - MW 10x1.5 / N40 - cylindrical magnet

Specification / characteristics - MW 10x1.5 / N40 - cylindrical magnet

properties
properties values
Cat. no. 010595
GTIN/EAN 5906301815891
Distributor Dhit sp. z o.o.
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 10 mm [±0,1 mm]
Height 1.5 mm [±0,1 mm]
Weight 0.88 g
Magnetization Direction ↑ axial
Load capacity ~ ? 0.82 kg / 8.04 N
Magnetic Induction ~ ? 183.09 mT / 1831 Gs
Coating [NiCuNi] Nickel
Manufacturing Tolerance ±0.1 mm

Magnetic properties of material N40

Specification / characteristics MW 10x1.5 / N40 - cylindrical magnet
properties values units
Remanence Br ? 12.6-12.9 kGs
Remanence Br ? 1260-1290 mT
Coercivity bHc ? 10.5-12.0 kOe
Coercivity bHc ? 860-955 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 38-40 BH max MGOe
Energy product BHmax ? 303-318 BH max KJ/m
Maximum working temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 310 °C
Curie Temperature TF 590 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Technical modeling of the magnet - technical parameters

The following information constitute the direct effect of a physical calculation. Values rely on models for the material Nd2Fe14B. Operational parameters might slightly differ. Use these data as a supplementary guide when designing systems.

Table 1: Static pull force (pull vs distance) - interaction chart
MW 10x1.5 / N40

Distance (mm) Induction (Gauss) / mT Pull Force (kg/lbs/g/N) Risk Status
0 mm 1830 Gs
183.0 mT
 0.82 kg / 1.81 lbs
820.0 g / 8.0 N
 safe
1 mm 1601 Gs
160.1 mT
 0.63 kg / 1.38 lbs
627.2 g / 6.2 N
 safe
2 mm 1288 Gs
128.8 mT
 0.41 kg / 0.90 lbs
406.2 g / 4.0 N
 safe
3 mm 985 Gs
98.5 mT
 0.24 kg / 0.52 lbs
237.4 g / 2.3 N
 safe
5 mm 545 Gs
54.5 mT
 0.07 kg / 0.16 lbs
72.8 g / 0.7 N
 safe
10 mm 144 Gs
14.4 mT
 0.01 kg / 0.01 lbs
5.1 g / 0.1 N
 safe
15 mm 53 Gs
5.3 mT
 0.00 kg / 0.00 lbs
0.7 g / 0.0 N
 safe
20 mm 25 Gs
2.5 mT
 0.00 kg / 0.00 lbs
0.1 g / 0.0 N
 safe
30 mm 8 Gs
0.8 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 safe
50 mm 2 Gs
0.2 mT
 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
 safe
Magnetic force decreases significantly with every subsequent millimeter of spacing. Keep in mind that even a microscopic distance (e.g., dirt, paint, dust) significantly weakens the grip. Magnets operate optimally at the point of direct contact; distance weakens the force. Notice how quickly the load capacity plummet, when the magnet does not touch flatly to the metal substrate. When calculating the assembly, discard unnecessary gaps.

Table 2: Shear hold (wall)
MW 10x1.5 / N40

Distance (mm) Friction coefficient Pull Force (kg/lbs/g/N)
0 mm Raw steel (µ ≈ 0.2) 0.16 kg / 0.36 lbs
164.0 g / 1.6 N
1 mm Raw steel (µ ≈ 0.2) 0.13 kg / 0.28 lbs
126.0 g / 1.2 N
2 mm Raw steel (µ ≈ 0.2) 0.08 kg / 0.18 lbs
82.0 g / 0.8 N
3 mm Raw steel (µ ≈ 0.2) 0.05 kg / 0.11 lbs
48.0 g / 0.5 N
5 mm Raw steel (µ ≈ 0.2) 0.01 kg / 0.03 lbs
14.0 g / 0.1 N
10 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 lbs
2.0 g / 0.0 N
15 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
20 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
30 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
50 mm Raw steel (µ ≈ 0.2) 0.00 kg / 0.00 lbs
0.0 g / 0.0 N
The table below shows the estimated weight limit needed to initiate the sliding of the magnet vertically along a vertical steel plate (considering typical friction coefficient). This value is relative to the separation distance between the magnet and the surface.

Table 3: Wall mounting (shearing) - behavior on slippery surfaces
MW 10x1.5 / N40

Surface type Friction coefficient / % Max load (kg/lbs/g/N)
Raw steel
µ = 0.3 30% of nominal force
0.25 kg / 0.54 lbs
246.0 g / 2.4 N
Painted steel (standard)
µ = 0.2 20% of nominal force
0.16 kg / 0.36 lbs
164.0 g / 1.6 N
Oily/slippery steel
µ = 0.1 10% of nominal force
0.08 kg / 0.18 lbs
82.0 g / 0.8 N
Magnet with anti-slip rubber
µ = 0.5 50% of nominal force
0.41 kg / 0.90 lbs
410.0 g / 4.0 N
When hanging a magnet on a vertical plane (e.g., a fridge), it you can count on barely about 20%-30% of its nominal power. Gravitational force as well as a weak degree of grip influence the fact that products slide down faster than they detach. Planning a wall mount? Remember that the shear force is noticeably lower than the maximum static pull force. On a slippery surface, the holder will give way down under a much lighter load. Utilizing a rubberized pad can significantly increase the grip.

Table 4: Material efficiency (saturation) - power losses
MW 10x1.5 / N40

Steel thickness (mm) % power Real pull force (kg/lbs/g/N)
0.5 mm
10%
 0.08 kg / 0.18 lbs
82.0 g / 0.8 N
1 mm
25%
 0.21 kg / 0.45 lbs
205.0 g / 2.0 N
2 mm
50%
 0.41 kg / 0.90 lbs
410.0 g / 4.0 N
3 mm
75%
 0.62 kg / 1.36 lbs
615.0 g / 6.0 N
5 mm
100%
 0.82 kg / 1.81 lbs
820.0 g / 8.0 N
10 mm
100%
 0.82 kg / 1.81 lbs
820.0 g / 8.0 N
11 mm
100%
 0.82 kg / 1.81 lbs
820.0 g / 8.0 N
12 mm
100%
 0.82 kg / 1.81 lbs
820.0 g / 8.0 N
A thin metal plate is unable to conduct the full magnetic flux, which weakens actual performance of the magnet. If you mount a strong magnet to a thin surface, the field will penetrate right through and the pull force will drop sharply. To utilize the maximum of this magnet's power, you require a sufficiently solid element of steel. The saturation phenomenon causes that on thin elements (e.g., thin profiles), the magnet shows lower pull force. We advise picking the steel dimension based on the following data.

Table 5: Thermal resistance (stability) - thermal limit
MW 10x1.5 / N40

Magnet temperature (°C) Force change relative to 20°C Remaining pull (kg/lbs/g/N) Status
20 °C 0.0% 0.82 kg / 1.81 lbs
820.0 g / 8.0 N
 Estimate
40 °C -4.4% 0.78 kg / 1.73 lbs
784.3 g / 7.7 N
 Estimate
60 °C -8.6% 0.75 kg / 1.65 lbs
749.4 g / 7.4 N
 Estimate
80 °C -12.8% 0.72 kg / 1.58 lbs
715.3 g / 7.0 N
 Material limit
100 °C — — Out of range — no model
The table estimates the reversible force change relative to 20°C, assuming a Br coefficient of -0.11%/°C and force proportional to Br². This is a simplified model with unchanged contact and geometry, not a measurement. Above the material limit, neither force nor irreversible magnetization loss is predicted.
The temperature limit comes from this product’s material data. Permissible conditions also depend on geometry and the magnetic circuit. Without B-H curves for the specific grade and temperature, Pc alone does not determine irreversible demagnetization. Values within the material range do not guarantee the allowable temperature of the complete assembly.

Table 6: Magnet-Magnet interaction (attraction) - field collision
MW 10x1.5 / N40

Gap (mm) Attraction (kg/lbs) (N-S) Lateral Force (kg/lbs/g/N) Repulsion (kg/lbs) (N-N)
0 mm 1.62 kg / 3.58 lbs
3 275 Gs
0.24 kg / 0.54 lbs
243 g / 2.4 N
 N/A
1 mm 1.45 kg / 3.21 lbs
3 467 Gs
0.22 kg / 0.48 lbs
218 g / 2.1 N
 1.31 kg / 2.89 lbs
~0 Gs
2 mm 1.24 kg / 2.74 lbs
3 201 Gs
0.19 kg / 0.41 lbs
186 g / 1.8 N
 1.12 kg / 2.46 lbs
~0 Gs
3 mm 1.02 kg / 2.24 lbs
2 896 Gs
0.15 kg / 0.34 lbs
152 g / 1.5 N
 0.91 kg / 2.01 lbs
~0 Gs
5 mm 0.62 kg / 1.37 lbs
2 263 Gs
0.09 kg / 0.20 lbs
93 g / 0.9 N
 0.56 kg / 1.23 lbs
~0 Gs
10 mm 0.14 kg / 0.32 lbs
1 090 Gs
0.02 kg / 0.05 lbs
22 g / 0.2 N
 0.13 kg / 0.29 lbs
~0 Gs
20 mm 0.01 kg / 0.02 lbs
289 Gs
0.00 kg / 0.00 lbs
2 g / 0.0 N
 0.01 kg / 0.02 lbs
~0 Gs
50 mm 0.00 kg / 0.00 lbs
27 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
60 mm 0.00 kg / 0.00 lbs
16 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
70 mm 0.00 kg / 0.00 lbs
10 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
80 mm 0.00 kg / 0.00 lbs
7 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
90 mm 0.00 kg / 0.00 lbs
5 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
100 mm 0.00 kg / 0.00 lbs
4 Gs
0.00 kg / 0.00 lbs
0 g / 0.0 N
 0.00 kg / 0.00 lbs
~0 Gs
Two magnetic products interact from a significantly greater distance than a magnet and sheet setup. The setup of two magnets creates a more powerful interaction and a larger range of operation. Planning to create a solid fastener? Utilize two neodymiums instead of one magnet and a striker plate. Remember that when bringing together two magnets, the impact force is huge. The repulsion force is marginally weaker than the connection force, but still large.
*Flux density between like poles is approximately ~0 Gs at the geometric center of the gap (caused by magnetic field nullification).
* Estimates show shear force of dual matching magnets (friction coefficient ~0.15 for Ni-Ni coating).

Table 7: Axial field levels — not safety zones
MW 10x1.5 / N40

Field level (Gs) mT Model distance (cm)
< 5 Gs < 0.5 mT 4.0 cm
< 10 Gs < 1.0 mT 3.0 cm
< 20 Gs < 2.0 mT 2.5 cm
< 40 Gs < 4.0 mT 2.0 cm
< 50 Gs < 5.0 mT 2.0 cm
< 400 Gs < 40.0 mT 1.0 cm
< 600 Gs < 60.0 mT 0.5 cm
Reference field levels for a model of one magnet, on its axis in air, with a 5 mm distance step. These are not device immunity limits or safe distances for implants. Do not use this table to assess the safety of a pacemaker, defibrillator or other implant; follow the device manufacturer’s and your clinician’s guidance. Steel and other magnets change the field distribution.

Table 8: Impact energy (kinetic energy) - collision effects
MW 10x1.5 / N40

Start from (mm) Speed (km/h) Energy (J) Predicted outcome
10 mm 23.81 km/h
(6.62 m/s)
 0.02 J
30 mm 23.89 km/h
(6.64 m/s)
 0.02 J
50 mm 23.89 km/h
(6.64 m/s)
 0.02 J
100 mm 23.89 km/h
(6.64 m/s)
 0.02 J
Magnetic elements are prone to chipping – a collision with steel can result in shattering. Control the attraction moment – a neodymium left loose becomes dangerous. Striking energy can destroy the magnet or painful pinches to fingers. Always hold the magnet during mounting so it doesn't hit violently against the steel surface. A contact at a velocity of dozens of km/h ends with a crack of the neodymium. Wear eye protection when playing with powerful specimens.

Table 9: Surface protection spec
MW 10x1.5 / N40

Technical parameter Value / Description
Coating type [NiCuNi] Nickel
Layer structure Nickel - Copper - Nickel
Layer thickness 10-20 µm
Salt spray test (SST) ? 24 h
Recommended environment Indoors only (dry)
The following table defines the conditions under which this product can be safely used. Note the thickness of the protective layer.

Table 10: Electrical data (Flux)
MW 10x1.5 / N40

Parameter Value SI Unit / Description
Magnetic Flux 1 765 Mx 17.7 µWb
Pc Coefficient 0.22 Low (Flat)
Flux value passing through the magnet pole. Essential parameter when building generators and motors. The Pc coefficient defines the magnet's operating point.

Table 11: Submerged application
MW 10x1.5 / N40

Environment Effective steel pull Effect
Air (land) 0.82 kg Standard
Water (riverbed) 0.94 kg
(+0.12 kg buoyancy gain)
+14.5%
Corrosion warning: Standard nickel requires drying after every contact with moisture; lack of maintenance will lead to rust spots.
Water displaces steel, making heavy objects slightly lighter. Buoyancy helps in lifting finds.

1. Sliding resistance

*Note: On a vertical wall, the magnet holds only ~20% of its max power.

2. Steel thickness impact

*Thin metal sheet (e.g. computer case) drastically limits the holding force.

3. Temperature resistance

N40: the maximum material working temperature is 80°C. Permitted conditions also depend on the shape and magnetic circuit.

4. Demagnetization curve and operating point (B-H)

chart generated for the permeance coefficient Pc (Permeance Coefficient) = 0.22

This simulation demonstrates the magnetic stability of the selected magnet under specific geometric conditions. The solid red line represents the demagnetization curve (material potential), while the dashed blue line is the load line based on the magnet's geometry. The Pc (Permeance Coefficient), also known as the load line slope, is a dimensionless value that describes the relationship between the magnet's shape and its magnetic stability. The intersection of these two lines (the black dot) is the operating point — it determines the actual magnetic flux density generated by the magnet in this specific configuration. A higher Pc value means the magnet is more 'slender' (tall relative to its area), resulting in a higher operating point and better resistance to irreversible demagnetization caused by external fields or temperature. At low Pc values (typical for flat magnets, below about 1) the operating point is closer to the 'knee' of the curve — caution is advised when operating at temperatures near the maximum limit to avoid strength loss.

Technical specification and ecology

Chemical composition

iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%

Environmental data

recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 010595-2026
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This product is an incredibly powerful rod magnet, composed of modern NdFeB material, which, at dimensions of Ø10x1.5 mm, guarantees maximum efficiency. This specific item features an accuracy of ±0.1mm and industrial build quality, making it an ideal solution for the most demanding engineers and designers. As a cylindrical magnet with significant force (approx. 0.82 kg), this product is available off-the-shelf from our European logistics center, ensuring quick order fulfillment. Additionally, its Ni-Cu-Ni coating effectively protects it against corrosion in typical operating conditions, ensuring an aesthetic appearance and durability for years.
This model is perfect for building electric motors, advanced sensors, and efficient magnetic separators, where field concentration on a small surface counts. Thanks to the high power of 8.04 N with a weight of only 0.88 g, this cylindrical magnet is indispensable in electronics and wherever low weight is crucial.
Due to the brittleness of the NdFeB material, you must not use force-fitting (so-called press-fit), as this risks immediate cracking of this precision component. To ensure stability in automation, anaerobic resins are used, which do not react with the nickel coating and fill the gap, guaranteeing high repeatability of the connection.
Choose the material grade together with the dimensions and working conditions. A grade designation alone does not determine the pull force of the finished magnet. Check the properties and working temperature of this specific model on its product card; contact us before ordering for an unusual application.
The presented product is a neodymium magnet with precisely defined parameters: diameter 10 mm and height 1.5 mm. The value of 8.04 N means that the magnet is capable of holding a weight many times exceeding its own mass of 0.88 g. The product has a [NiCuNi] coating, which secures it against external factors, giving it an aesthetic, silvery shine.
Standardly, the magnetic axis runs through the center of the cylinder, causing the greatest attraction force to occur on the bases with a diameter of 10 mm. Thanks to this, the magnet can be easily glued into a hole and achieve a strong field on the front surface. On request, we can also produce versions magnetized through the diameter if your project requires it.

Advantages as well as disadvantages of rare earth magnets.

Advantages

In addition to their magnetic capacity, neodymium magnets provide the following advantages:
  • Their strength remains stable, and after approximately ten years it decreases only by ~1% (theoretically),
  • They do not lose their magnetic properties even under close interference source,
  • A magnet with a smooth nickel surface looks better,
  • They feature high magnetic induction at the operating surface, making them more effective,
  • Thanks to resistance to high temperature, they can operate (depending on the form) even at temperatures up to 230°C and higher...
  • Thanks to freedom in designing and the capacity to modify to individual projects,
  • Huge importance in innovative solutions – they are used in hard drives, motor assemblies, advanced medical instruments, also modern systems.
  • Thanks to concentrated force, small magnets offer high operating force, in miniature format,

Weaknesses

Problematic aspects of neodymium magnets: application proposals
  • Susceptibility to cracking is one of their disadvantages. Upon intense impact they can break. We recommend keeping them in a strong case, which not only secures them against impacts but also raises their durability
  • Do not exceed this material temperature limit: 80°C. Overheating may permanently weaken the magnet.
  • They oxidize in a humid environment - during use outdoors we recommend using waterproof magnets e.g. in rubber, plastic
  • Limited possibility of creating threads in the magnet and complex shapes - recommended is casing - magnet mounting.
  • Possible danger related to microscopic parts of magnets pose a threat, if swallowed, which is particularly important in the context of child safety. Additionally, small components of these products are able to disrupt the diagnostic process medical in case of swallowing.
  • Due to neodymium price, their price is higher than average,

Holding force characteristics

Breakaway strength of the magnet in ideal conditions – what it depends on?

The lifting capacity listed is a theoretical maximum value performed under specific, ideal conditions:
  • using a plate made of high-permeability steel, acting as a ideal flux conductor
  • with a thickness no less than 10 mm
  • with a plane perfectly flat
  • under conditions of ideal adhesion (surface-to-surface)
  • during detachment in a direction perpendicular to the mounting surface
  • at ambient temperature room level

What influences lifting capacity in practice

In practice, the actual lifting capacity is determined by many variables, presented from most significant:
  • Gap between surfaces – even a fraction of a millimeter of distance (caused e.g. by veneer or dirt) diminishes the magnet efficiency, often by half at just 0.5 mm.
  • Angle of force application – highest force is reached only during perpendicular pulling. The force required to slide of the magnet along the plate is standardly several times smaller (approx. 1/5 of the lifting capacity).
  • Substrate thickness – to utilize 100% power, the steel must be sufficiently thick. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Plate material – low-carbon steel gives the best results. Higher carbon content reduce magnetic permeability and holding force.
  • Surface condition – ground elements ensure maximum contact, which increases field saturation. Rough surfaces reduce efficiency.
  • Temperature influence – hot environment weakens pulling force. Exceeding the limit temperature can permanently damage the magnet.

Lifting capacity was assessed using a polished steel plate of suitable thickness (min. 20 mm), under vertically applied force, in contrast under parallel forces the lifting capacity is smaller. Additionally, even a small distance between the magnet’s surface and the plate lowers the holding force.

Precautions when working with NdFeB magnets
Thermal limits

Do not exceed the maximum operating temperature stated in the specifications of the particular product. The limit depends on the material, geometry and operating arrangement; there is no single threshold for all neodymium magnets. Overheating can permanently weaken a magnet.

Keep away from children

Always store magnets out of reach of children. Ingestion danger is high, and the effects of magnets clamping inside the body are very dangerous.

ICD Warning

People with a heart stimulator should keep an safe separation from magnets. The magnetic field can stop the operation of the life-saving device.

Nickel coating and allergies

It is widely known that the nickel plating (the usual finish) is a common allergen. If your skin reacts to metals, prevent touching magnets with bare hands or choose encased magnets.

Material brittleness

Beware of splinters. Magnets can fracture upon violent connection, launching sharp fragments into the air. Eye protection is mandatory.

Dust is flammable

Fire warning: Neodymium dust is explosive. Do not process magnets in home conditions as this may cause fire.

Safe distance

Equipment safety: Neodymium magnets can damage data carriers and delicate electronics (pacemakers, medical aids, mechanical watches).

Serious injuries

Protect your hands. Two powerful magnets will join instantly with a force of massive weight, crushing anything in their path. Exercise extreme caution!

Powerful field

Before starting, read the rules. Sudden snapping can destroy the magnet or hurt your hand. Think ahead.

GPS and phone interference

Be aware: rare earth magnets generate a field that interferes with sensitive sensors. Maintain a safe distance from your mobile, tablet, and GPS.

Security! Details about hazards in the article: Safety of working with magnets.